Global Patent Index - EP 2690483 A1

EP 2690483 A1 20140129 - Head-up display and method for operating it

Title (en)

Head-up display and method for operating it

Title (de)

Head-up-Anzeige und Betriebsverfahren dafür

Title (fr)

Dispositif d'affichage tête haute et son procédé de fonctionnement

Publication

EP 2690483 A1 20140129 (EN)

Application

EP 12177877 A 20120725

Priority

EP 12177877 A 20120725

Abstract (en)

The invention relates to a head-up display (1) comprising: - at least three light sources (2.1, 2.2, 2.3), each one arranged to emit light (L) with a basic colour different from the basic colour of the other light sources (2.1, 2.2, 2.3), - a digital micro mirror device (3) comprising an array of micro mirrors, wherein the light (L) of the light sources (2.1, 2.2, 2.3) is directed onto the digital micro mirror device (3), - at least one combiner (4) for displaying an image (I), and - at least one control unit (5) for multiplexing the light sources (2.1, 2.2, 2.3) so as to sequentially emit light (L) thus creating a field-sequential colour system and for controlling the digital micro mirror device (3) so as to selectively rotate the micro mirrors between an on state, where the light (L) from the light sources (2.1, 2.2, 2.3) is reflected into an optical path (OP) towards the combiner (4), and an off state, where the light (L) is reflected away from that optical path (OP). The invention also relates to a method for operating the head-up display (1).

IPC 8 full level

G02B 27/01 (2006.01)

CPC (source: EP US)

B60R 1/001 (2013.01 - US); G02B 27/0101 (2013.01 - EP US); B60R 2300/205 (2013.01 - US); G02B 27/01 (2013.01 - EP US); G02B 2027/0112 (2013.01 - EP US); G02B 2027/0118 (2013.01 - EP US); G02B 2027/0145 (2013.01 - EP US); G02B 2027/0156 (2013.01 - EP US)

Citation (applicant)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 2690483 A1 20140129; JP 2015525903 A 20150907; JP 2018055110 A 20180405; US 2015212320 A1 20150730; US 9784969 B2 20171010; WO 2014016329 A1 20140130

DOCDB simple family (application)

EP 12177877 A 20120725; EP 2013065584 W 20130724; JP 2015523538 A 20130724; JP 2017211602 A 20171101; US 201314416489 A 20130724